Diarylethene Molecules on a Ag(111) Surface: Stability and Electron-Induced Switching
- Diarylethene derivatives are photochromic molecular switches, undergoing a ring-opening/-closing reaction by illumination with light. The symmetry of the closed form is determined by the WoodWard Hoffinann rules according to which the reaction proceeds by corirotatory rotation -in that case. Here, we show by a cOrnbined approach of scanning tunneling microscopy (STM) and density functional theory (DFT) calculations that the Open isomer of 4,4'-(4,4'-(perfluorocydopent-1-ene-1,2-diyl)bis(5-methyl-thiophent-4,2,4-dipyridine) (PDTE) retains its open form upon adsorption on a Ag(111) surface. It caribe switched into a closed form, which we identify as the digrotatOly cydization product, by controlled manipulation 'With the STM tip, Evidence of an electric-field dependent switching-process 'is interpreted on the basis of a Simple electroStatic Model, which suggests that the reaction proceedS via an "upright" intermediate state. This pathway thus strongly differs from the switching reaction in solution.
Verfasserangaben: | Jonas WirthGND, Nino Hatter, Robert Drost, Tobias R. Umbach, Sara Barja, Matthias Zastrow, Karola Rück-BraunORCiD, Jose Ignacio Pascual, Peter SaalfrankORCiDGND, Katharina J. Franke |
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DOI: | https://doi.org/10.1021/jp5122036 |
ISSN: | 1932-7447 |
Titel des übergeordneten Werks (Englisch): | The journal of physical chemistry : C, Nanomaterials and interfaces |
Verlag: | American Chemical Society |
Verlagsort: | Washington |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2015 |
Erscheinungsjahr: | 2015 |
Datum der Freischaltung: | 27.03.2017 |
Band: | 119 |
Ausgabe: | 9 |
Seitenanzahl: | 10 |
Erste Seite: | 4874 |
Letzte Seite: | 4883 |
Fördernde Institution: | Deutsche Forschungsgemeinschaft [Sonderforschungsbereich 658, FR2726/4]; FU Berlin by FPU [AP-2007-001157] |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
Peer Review: | Referiert |